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biology > Quiz 4 qt2 test 1 > Flashcards

Quiz 4 qt2 test 1 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

what is the nickname for microtubules?

A

skeleton of a cell

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2
Q

what is the nickname for micro filaments?

A

skeleton of a cell

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3
Q

what is the function of microtubules?

A

support or shape

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4
Q

what is the structure of microtubules?

A

made of protein and shaped like mini tubes

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5
Q

what is the function of microfilaments?

A

cell movement

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6
Q

what is the structure of microfilaments?

A

threads made of protein

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7
Q

what are microtubules/filaments linked to?

A

cancer

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8
Q

what are the 3 differences between a plant cell and animal cell?

A

cell wall, chloroplasts, and large vacuoles

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9
Q

what is the function of a cell wall?

A

to prevent dehydration

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10
Q

what is the cell wall made up of?

A

cellulose

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11
Q

what is glue pectin?

A

glue between cell wall and membrane

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12
Q

where is glue pectin found?

A

in jelly or jam

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13
Q

what are chloroplasts?

A

holderd/ containers of chlorophyll

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14
Q

what does plastid mean?

A

to hold stuff

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15
Q

what are leukoplastids?

A

white starches

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16
Q

what is chlorophyll?

A

green pigment

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17
Q

what are chromoplasts?

A

holds colored pigments that arent green

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18
Q

what is the name for an orange pigment?

A

carotein

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19
Q

what the name for yellow pigment?

A

xanthophyll

20
Q

what the name for red pigment?

A

anthocyanin

21
Q

why do plants have large vacuoles?

A

because they cant access water whenever they want

22
Q

were is the cell membrane located?

A

surrounding animal and plant cells

23
Q

what is the function of the cell membrane

A

to prevent dehydration

24
Q

what is the structure of the cell membrane like

A

semi permeable (selective)

25
Q

what occurs in the cell membrane

A

some particles move inside the cell, some particles move out of the cell, its selective and differential

26
Q

what does the movement of a cell membrane depend on

A

size of particles, temperature, pressure

27
Q

what is the first model of the cell membrane called?

A

the sandwich model

28
Q

what kind of model is the sandwich model

A

static

29
Q

what was inside the sandwich model

A

protein, fat, and phosphate

30
Q

what are the cells arranged in the sandwich model?

A

F +P
Protein
P+ F

31
Q

what was the problem with the sandwich model

A

it had no pores

32
Q

what was the second cell membrane model called?

A

fluid mosaic model

33
Q

what kind of model is the fluid mosaic model

A

dynamic with pores

34
Q

describe the fluid mosaic model?

A

proteins inside 2 layers of phospholipids, legs move+ create space for things to enter

35
Q

what are phospholipids?

A

phosphate+ lipids

36
Q

what are some differences between the2 cell membrane models?

A

pores, movement, things can go in and out

37
Q

what is passive transport

A

the movement from a high concentration to a low concentration without using energy

38
Q

what is another name for passive transport?

A

diffusion

39
Q

what is the goal of passive transport

A

to get balance

40
Q

what is osmosis?

A

movement of h2o molecules from a high concentration to a low concentration through a membrane

41
Q

what is facilitated transport?

A

carrier proteins helped transport molecules through molecule

42
Q

what is filtration?

A

process by which h2o and solutes are forced through a membrane by fluid, or hydrostatic pressure (usually exerted by blood)

43
Q

what are capillaries?

A

small blood vessels

44
Q

what kind of process is filtration?

A

not selective

45
Q

why is filtration necessary?

A

for kidneys to operate

biology (22 decks)

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